Hi
Gray SPGX looks no different than a solid color gray epoxy floor, there is no visual difference, just a different material. It is solid/opaque, not transparent.
Hi
SPGX is a thin mil coating to be applied based on porosity at 250-300 sq ft/gal. The only coatings that can really be built up are 100% solids as they cure at the level applied at and don't shrink since they have no solvents or carriers.